478438477 has 12 divisors (see below), whose sum is σ = 532234080. Its totient is φ = 429694760.

The previous prime is 478438439. The next prime is 478438481. The reversal of 478438477 is 774834874.

It is not a de Polignac number, because 478438477 - 2⁷ = 478438349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478438777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13777 + ... + 33862.

It is an arithmetic number, because the mean of its divisors is an integer number (44352840).

Almost surely, 2^478438477 is an apocalyptic number.

It is an amenable number.

478438477 is a deficient number, since it is larger than the sum of its proper divisors (53795603).

478438477 is a wasteful number, since it uses less digits than its factorization.

478438477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47744 (or 47733 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 52.

The square root of 478438477 is about 21873.2365460624. The cubic root of 478438477 is about 782.1235564391.

The spelling of 478438477 in words is "four hundred seventy-eight million, four hundred thirty-eight thousand, four hundred seventy-seven".